Drug Name Tetracycline

Giardia lamblia and ameba are intestinal parasites that can cause abdominal pain and diarrhea in infected individuals. Trichomonas is a vaginal parasite that causes inflammation of the vagina (vaginitis). Metronidazole selectively blocks some of the functions within the bacterial cells and the parasites resulting in their death.
Generic versions are available in Canada and were FDA approved in September 2006. Mylan Pharmaceuticals was recently granted final approval for generic topiramate 25, 100, and 200 mg tablets and sprinkle capsules by the FDA for sale in the US. 50 mg tablets were granted tentative approval. The last patent for topiramate in the U.S. was for pediatric use; this patent expired on February 28, 2009.

 

Doxycycline is a molecule of the cyclin family that works as an antibiotic by slowing the growth of bacteria in the body. It is a semi-synthetic tetracycline that was developed in the early 60s by Pfizer Inc. and marketed under the name Vibramycin, approved by the FDA in 1967. It was the first broad-spectrum daily antibiotic created and proved to be effective against intracellular bacteria.
Ampicillin (originally branded as 'Penbritin') also demonstrated activity against Gram-negative organisms such as H. influenzae, coliforms and Proteus spp.